AT89LP4052-20SU Atmel, AT89LP4052-20SU Datasheet - Page 3

• Manufacturer Part Number: AT89LP4052-20SU
• Description: IC 8051 MCU FLASH 4K 20SOIC
• Manufacturer: Atmel
• Series: 89LPr

Specifications of AT89LP4052-20SU

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 15
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-SOIC (7.5mm Width)
• Processor Series: AT89x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: SPI/UART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 15
• Number Of Timers: 2
• Operating Supply Voltage: 2.4 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: AT89ISP
• Minimum Operating Temperature: - 40 C
• Package: 20SOIC W
• Device Core: 8051
• Family Name: AT89
• Maximum Speed: 20 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

3. Pin Description
3547J–MICRO–10/09
Pin
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
Symbol
XTAL2
XTAL1
GND
VCC
RST
P3.0
P3.1
P3.2
P3.3
P3.4
P3.5
P3.7
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
Type
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
I
I
I
I
I
I
I
I
I
I
I
Description
RST: External Active-High Reset input.
VPP: Parallel Programming Voltage. Raise to 12V to enable programming.
P3.0: User-configurable I/O Port 3 bit 0.
RXD: Serial Port Receiver input.
P3.1: User-configurable I/O Port 3 bit 1.
TXD: Serial Port Transmitter output.
XTAL2: Output from inverting oscillator amplifier.
XTAL1: Input to the inverting oscillator amplifier and internal clock generation circuits.
P3.2: User-configurable I/O Port 3 bit 2.
INT0: External Interrupt 0 input.
P3.3: User-configurable I/O Port 3 bit 3.
INT1: External Interrupt 1input.
P3.4: User-configurable I/O Port 3 bit 4.
T0: Timer 0 Counter input or PWM output
P3.5: User-configurable I/O Port 3 bit 5.
T1: Timer 1 Counter input or PWM output
Ground
P3.7: User-configurable I/O Port 3 bit 7.
SYSCLK: System Clock Output when System Clock Fuse is enabled.
P1.0: User-configurable I/O Port 1 bit 0.
AIN0: Analog Comparator Positive input.
P1.1: User-configurable I/O Port 1 bit 1.
AIN1: Analog Comparator Negative input.
P1.2: User-configurable I/O Port 1 bit 2.
P1.3: User-configurable I/O Port 1 bit 3
P1.4: User-configurable I/O Port 1 bit 4.
SS: SPI slave select.
P1.5: User-configurable I/O Port 1 bit 5.
MOSI: SPI master-out/slave-in. When configured as master, this pin is an output. When configured as
slave, this pin is an input.
P1.6: User-configurable I/O Port 1 bit 6.
MISO: SPI master-in/slave-out. When configured as master, this pin is an input. When configured
as slave, this pin is an output.
P1.7: User-configurable I/O Port 1 bit 7.
SCK: SPI Clock. When configured as master, this pin is an output. When configured as slave, this pin is
an input.
Supply Voltage
AT89LP2052/LP4052
3